A man goes to the doctor and says he has pain everywhere. He presses his finger on his head and says its painful. He presses his finger on his chest and says its painful. He presses his finger on his stomach and says its painful. He presses his finger on his legs and says that's painful.

The doctor looks at him and says, "There's nothing wrong with those parts of your body. It's your finger that's painful."

Why was 6 afraid of 7?
Because 7 8 9.